1002542140 has 12 divisors (see below), whose sum is σ = 2105338536. Its totient is φ = 401016848.

The previous prime is 1002542113. The next prime is 1002542141. The reversal of 1002542140 is 412452001.

1002542140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002542141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25063534 + ... + 25063573.

It is an arithmetic number, because the mean of its divisors is an integer number (175444878).

Almost surely, 2^1002542140 is an apocalyptic number.

1002542140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002542140 is an abundant number, since it is smaller than the sum of its proper divisors (1102796396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002542140 is a wasteful number, since it uses less digits than its factorization.

1002542140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50127116 (or 50127114 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1002542140 is about 31662.9458515786. The cubic root of 1002542140 is about 1000.8466629595.

Adding to 1002542140 its reverse (412452001), we get a palindrome (1414994141).

The spelling of 1002542140 in words is "one billion, two million, five hundred forty-two thousand, one hundred forty".